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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Draft file ajax file manager
*
* @package core
* @subpackage repository
* @copyright 2010 Dongsheng Cai <dongsheng@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('AJAX_SCRIPT', true);
require('../config.php');
require_once($CFG->libdir.'/filelib.php');
require_once($CFG->libdir.'/adminlib.php');
require_once($CFG->dirroot.'/repository/lib.php');
$PAGE->set_context(context_system::instance());
require_login();
if (isguestuser()) {
print_error('noguest');
}
require_sesskey();
$action = required_param('action', PARAM_ALPHA);
$draftid = required_param('itemid', PARAM_INT);
$filepath = optional_param('filepath', '/', PARAM_PATH);
$user_context = context_user::instance($USER->id);
echo $OUTPUT->header(); // send headers
//
//NOTE TO ALL DEVELOPERS: this script must deal only with draft area of current user, it has to use only file_storage and no file_browser!!
//
switch ($action) {
case 'dir':
$data = new stdClass();
file_get_drafarea_folders($draftid, $filepath, $data);
echo json_encode($data);
die;
case 'list':
$filepath = optional_param('filepath', '/', PARAM_PATH);
$data = repository::prepare_listing(file_get_drafarea_files($draftid, $filepath));
$info = file_get_draft_area_info($draftid);
$data->filecount = $info['filecount'];
$data->filesize = $info['filesize'];
$data->tree = new stdClass();
file_get_drafarea_folders($draftid, '/', $data->tree);
echo json_encode($data);
die;
case 'mkdir':
$filepath = required_param('filepath', PARAM_PATH);
$newdirname = required_param('newdirname', PARAM_FILE);
$fs = get_file_storage();
$fs->create_directory($user_context->id, 'user', 'draft', $draftid, file_correct_filepath(file_correct_filepath($filepath).$newdirname));
$return = new stdClass();
$return->filepath = $filepath;
echo json_encode($return);
die;
case 'delete':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$fs = get_file_storage();
$filepath = file_correct_filepath($filepath);
$return = new stdClass();
if ($stored_file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename)) {
$parent_path = $stored_file->get_parent_directory()->get_filepath();
if ($stored_file->is_directory()) {
$files = $fs->get_directory_files($user_context->id, 'user', 'draft', $draftid, $filepath, true);
foreach ($files as $file) {
$file->delete();
}
$stored_file->delete();
$return->filepath = $parent_path;
echo json_encode($return);
} else {
if($result = $stored_file->delete()) {
$return->filepath = $parent_path;
echo json_encode($return);
} else {
echo json_encode(false);
}
}
} else {
echo json_encode(false);
}
die;
case 'setmainfile':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$filepath = file_correct_filepath($filepath);
// reset sort order
file_reset_sortorder($user_context->id, 'user', 'draft', $draftid);
// set main file
$return = file_set_sortorder($user_context->id, 'user', 'draft', $draftid, $filepath, $filename, 1);
echo json_encode($return);
die;
case 'updatefile':
// Allows to Rename file, move it to another directory, change it's license and author information in one request
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$updatedata = array();
$updatedata['filename'] = optional_param('newfilename', $filename, PARAM_FILE);
$updatedata['filepath'] = $newfilepath = optional_param('newfilepath', $filepath, PARAM_PATH);
if (($v = optional_param('newlicense', false, PARAM_TEXT)) !== false) {
$updatedata['license'] = $v;
}
if (($v = optional_param('newauthor', false, PARAM_TEXT)) !== false) {
$updatedata['author'] = $v;
}
try {
repository::update_draftfile($draftid, $filepath, $filename, $updatedata);
} catch (moodle_exception $e) {
die(json_encode((object)array('error' => $e->getMessage())));
}
die(json_encode((object)array('filepath' => $newfilepath)));
case 'updatedir':
$filepath = required_param('filepath', PARAM_PATH);
$newdirname = required_param('newdirname', PARAM_FILE);
$parent = required_param('newfilepath', PARAM_PATH);
$newfilepath = clean_param($parent . '/' . $newdirname . '/', PARAM_PATH);
try {
repository::update_draftfile($draftid, $filepath, '.', array('filepath' => $newfilepath));
} catch (moodle_exception $e) {
die(json_encode((object)array('error' => $e->getMessage())));
}
die(json_encode((object)array('filepath' => $parent)));
case 'zip':
$filepath = required_param('filepath', PARAM_PATH);
$zipper = get_file_packer('application/zip');
$fs = get_file_storage();
$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.');
$parent_path = $file->get_parent_directory()->get_filepath();
$filepath = explode('/', trim($file->get_filepath(), '/'));
$filepath = array_pop($filepath);
$zipfile = repository::get_unused_filename($draftid, $parent_path, $filepath . '.zip');
if ($newfile = $zipper->archive_to_storage(array($filepath => $file), $user_context->id, 'user', 'draft', $draftid, $parent_path, $zipfile, $USER->id)) {
$return = new stdClass();
$return->filepath = $parent_path;
echo json_encode($return);
} else {
echo json_encode(false);
}
die;
case 'downloaddir':
$filepath = required_param('filepath', PARAM_PATH);
$zipper = get_file_packer('application/zip');
$fs = get_file_storage();
$area = file_get_draft_area_info($draftid, $filepath);
if ($area['filecount'] == 0 && $area['foldercount'] == 0) {
echo json_encode(false);
die;
}
$stored_file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.');
if ($filepath === '/') {
$filename = get_string('files').'.zip';
} else {
$filename = explode('/', trim($filepath, '/'));
$filename = array_pop($filename) . '.zip';
}
// archive compressed file to an unused draft area
$newdraftitemid = file_get_unused_draft_itemid();
if ($newfile = $zipper->archive_to_storage(array('/' => $stored_file), $user_context->id, 'user', 'draft', $newdraftitemid, '/', $filename, $USER->id)) {
$return = new stdClass();
$return->fileurl = moodle_url::make_draftfile_url($newdraftitemid, '/', $filename)->out();
$return->filepath = $filepath;
echo json_encode($return);
} else {
echo json_encode(false);
}
die;
case 'unzip':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$zipper = get_file_packer('application/zip');
$fs = get_file_storage();
$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename);
// Find unused name for directory to extract the archive.
$temppath = $fs->get_unused_dirname($user_context->id, 'user', 'draft', $draftid, $filepath. pathinfo($filename, PATHINFO_FILENAME). '/');
$donotremovedirs = array();
$doremovedirs = array($temppath);
// Extract archive and move all files from $temppath to $filepath
if ($file->extract_to_storage($zipper, $user_context->id, 'user', 'draft', $draftid, $temppath, $USER->id) !== false) {
$extractedfiles = $fs->get_directory_files($user_context->id, 'user', 'draft', $draftid, $temppath, true);
$xtemppath = preg_quote($temppath, '|');
foreach ($extractedfiles as $file) {
$realpath = preg_replace('|^'.$xtemppath.'|', $filepath, $file->get_filepath());
if (!$file->is_directory()) {
// Set the source to the extracted file to indicate that it came from archive.
$file->set_source(serialize((object)array('source' => $filepath)));
}
if (!$fs->file_exists($user_context->id, 'user', 'draft', $draftid, $realpath, $file->get_filename())) {
// File or directory did not exist, just move it.
$file->rename($realpath, $file->get_filename());
} else if (!$file->is_directory()) {
// File already existed, overwrite it
repository::overwrite_existing_draftfile($draftid, $realpath, $file->get_filename(), $file->get_filepath(), $file->get_filename());
} else {
// Directory already existed, remove temporary dir but make sure we don't remove the existing dir
$doremovedirs[] = $file->get_filepath();
$donotremovedirs[] = $realpath;
}
}
$return = new stdClass();
$return->filepath = $filepath;
} else {
$return = false;
}
// Remove remaining temporary directories.
foreach (array_diff($doremovedirs, $donotremovedirs) as $filepath) {
if ($file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.')) {
$file->delete();
}
}
die(json_encode($return));
case 'getoriginal':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$fs = get_file_storage();
$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename);
if (!$file) {
echo json_encode(false);
} else {
$return = array('filename' => $filename, 'filepath' => $filepath, 'original' => $file->get_reference_details());
echo json_encode((object)$return);
}
die;
case 'getreferences':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$fs = get_file_storage();
$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename);
if (!$file) {
echo json_encode(false);
} else {
$source = unserialize($file->get_source());
$return = array('filename' => $filename, 'filepath' => $filepath, 'references' => array());
$browser = get_file_browser();
if (isset($source->original)) {
$reffiles = $fs->search_references($source->original);
foreach ($reffiles as $reffile) {
$refcontext = context::instance_by_id($reffile->get_contextid());
$fileinfo = $browser->get_file_info($refcontext, $reffile->get_component(), $reffile->get_filearea(), $reffile->get_itemid(), $reffile->get_filepath(), $reffile->get_filename());
if (empty($fileinfo)) {
$return['references'][] = get_string('undisclosedreference', 'repository');
} else {
$return['references'][] = $fileinfo->get_readable_fullname();
}
}
}
echo json_encode((object)$return);
}
die;
default:
// no/unknown action?
echo json_encode(false);
die;
}